Quick Answer: Educational Spectroscopy Prism is a transparent glass prism for demonstrating refraction, angular deviation and the dispersion of white light, listed in 38 mm and 50 mm sizes in equilateral and right-angle forms.
Last updated: October 2026
Key Features
Transparent glass with polished refracting surfaces
Equilateral (60°) and right-angle (45°–45°–90°) configurations
Nominal 38 mm and 50 mm sizes
Equilateral versions offered in two quality grades
Uses no power; works with a separate light source or spectrometer arrangement
Technical Specifications
Specification
Value
Material
Transparent glass
Equilateral prism
60°; 38 mm or 50 mm
Right-angle prism
45°–45°–90°; 38 mm or 50 mm
Quality grades (equilateral)
Routine and one further listed grade
About This Product
Students direct a narrow beam of white light at one polished face and rotate the prism until the separated colours appear on a white screen, then record the incident and deviation angles with suitable apparatus when measurements are needed. That covers the dispersion, deviation and introductory refractive-index practicals in a Light And Optics course.
Frequently Asked Questions
Q1. Which sizes are listed? Both the equilateral and the right-angle versions are listed in nominal 38 mm and 50 mm sizes.
Q2. Is a holder or light source included? No holder is listed as included, and a light source or ray box is not included unless stated with the order, so a prism table and source are arranged separately.
Q3. How should the prism be handled? By its non-optical edges, keeping the polished faces free of fingerprints and knocks. It should never be used to direct sunlight or an intense beam toward the eyes.
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